Northern Laboratories of Nature and the Quest for Scientific Honour in Early Modern Sweden

Abstract

This article studies the role of climate and geography in the scientific networks which were taking form in Europe in the early modern period. It seeks to contribute to an analysis of the meanings attributed to the North as a scientific environment or an object of study and, in particular, show the wider contextual motivations behind the research of the northern lights as well as phenomena related to physical cold. The analysis will concentrate on the learned discussions taking place between scholars in the Kingdom of Sweden and the Académie des Sciences in Paris. The great scholarly interest in the aurora borealis starting in the early eighteenth century emerged rapidly after the sudden appearance of this striking and enigmatic phenomenon across a large part of Europe during the first decades of the eighteenth century. In a similar manner, cold winters experienced all over Europe during the late seventeenth century had inspired the first scientific societies in Europe to carry out experiments that under ordinary circumstances could not have been pursued. These events underlined the dependency of early empiricists on nature's help when extending the scope of their scientific inquiries. The awareness of the constraints of empirical study, combined with a new ideological view of scientific societies as seats of a collective scientific effort, prompted a new kind of specialization in science. The idea was introduced that each scholar or country should take care of producing experiments and observations that were best attainable in their particular environment. The need became most obvious in research topics such as the cold which – unlike heat – could not be produced artificially. As a demand for observations that were specific to northern tracts emerged in Europe, northern scholars discovered in their expertise on the northern issues a niche to negotiate a new prestige in the European scientific networks. Traditional views had maintained that only the warm, southern climates offered a natural environment for civilisation and arts to flourish. New empirical sciences practised by the scientific societies seemed to provide a convenient break with this assumption.     

The Role of the Societas Meteorologica Palatina (1781–1792) in the History of Auroral Research

Abstract

The Societas Meteorologica Palatina, or Meteorological Society of Mannheim, was set up in 1781 to coordinate observations of the weather on an international scale. In addition to temperature, pressure and humidity, observers connected to the network were instructed to record various atmospheric phenomena, among these the aurora borealis. The 39 stations of the network reported about 1400 individual sightings of auroras during the Society's dozen years of existence. The reported sightings are subjected to a statistical analysis that brings out striking discrepancies between the number of auroras that one would expect and the number that was reported. The statistical analysis is supplemented by an analysis of the theoretical and phenomenological comments in the Society's annual reports. The study suggests that observers on the Continent considered themselves just as advantageously situated as observers further north when trying to solve the riddle of the northern lights. It also illustrates the variety of conflicting ideas about the aurora borealis that existed during the late Enlightenment, and how these might have influenced the number of reported auroras. This lack of consensus contributed to many anomalies in the data presented in the Society's reports. By combining linguistic and scientific competence it is possible to shed light on these anomalies and on the historical context that shaped them.     

Between Spectacle and Science: The Aurora in Central Europe, 1870s–1880s

Abstract

The article discusses the return and reception of two Austro-Hungarian arctic expeditions in 1874 and 1883, respectively. Both expeditions conducted extensive auroral research. The article focuses on the media discourse of the time: how the expeditions including their scientific aims and outcomes were perceived in the Viennese press and society. The reception given to each of the expeditions and the manner by which each was covered in the press differed greatly; accordingly, the aurora borealis, a quintessential polar phenomenon itself, was ascribed with strikingly dissimilar meanings in the media. Whereas in 1874 domestic interests were projected onto the Arctic, with the aurora symbolizing the monarchy's bright future, in 1883 media attention focused on local events such as the International Electrical Exhibition in Vienna; the Arctic no longer served as a potent symbol for Austro-Hungarian affairs. Analyses of various forms of media such as texts, poems, and illustrations show the cultural situatedness of scientific knowledge and its popularization. Representations and interpretations of the aurora can only be understood within the political, social, technological and cultural contexts of the time.     

Auroral Research and the Character of Astronomy in Enlightenment Sweden

Abstract

The observation of the magnetic effects of the aurora borealis by Olof Hiorter in the 1740s was hailed by Swedish scientists as one of the major discoveries in contemporary research. This article investigates the political and academic context of the discovery, focusing on the astronomical ideals promoted by Hiorter. He used the discovery in order to buttress the importance of his own scientific character – technically competent, hard-working and research-oriented. He contrasted this ideal with the character of an ordinary university professor who was described as more of a bureaucrat, interested in science only as long as it could boost his reputation, and not averse from stealing results of technically more competent underlings. Hiorter's opponents at the university decried his lack of theory and devalued the importance of technical skill. This conflict is discussed in the context of ideals concerning cultural, political and economic values of science and scientists.     

Appropriating the Aurora: Christopher Hansteen and the Circumpolar Auroral Rings

Abstract

The Norwegian astronomer and mathematician Christopher Hansteen (1784–1873) is best known for his career-long contribution to the study of terrestrial magnetism. In his monumental Magnetismus der Erde (1819), he suggests that the earth had two magnetic axes and thus four magnetic poles. It is less known that Hansteen planned to publish a second part of Magnetismus der Erde devoted solely to the polar lights, but this work was never completed. In this article, I reconstruct Hansteen's strategy for studying the aurora borealis and explain how the polar lights were connected to his four-pole theory. I emphasize in particular the spatial and geographical dimension of Hansteen's approach, focusing on his analysis of both the auroral corona and the auroral ring. In accordance with his own theory of terrestrial magnetism, he suggested the existence of four such circumpolar auroral rings, each centered around one of the four magnetic poles identified in Magnetismus der Erde. Hansteen's auroral project entailed an appropriation of earlier ideas and methods, especially those of Edmond Halley and Alexander von Humboldt. He sought to bolster the claim for the privileged position of the Scandinavian countries for observing and analyzing the aurora.     

Variations in Mid‐Latitude Auroral Activity During the Holocene*

Estimates of the past location of the auroral zone can aid archaeologists in the interpretation of documented light phenomena in the night sky; in particular, during periods without written records and in regions where aurorae are scarce today. Aurora occurrence largely depends on solar activity as well as the tilt and strength of the geomagnetic field. Here, we introduce a tool (AUREST) that visually combines the time‐dependent variations of these parameters to provide relative estimates of aurora occurrence in mid‐latitude regions of the Northern Hemisphere over the past 10 000 years. Tests against historical aurora observations show good compatibility with AUREST.